How To: BURNOUT REV LIMITER?
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
How To: BURNOUT REV LIMITER? HPTUNERS tuned
Turbo LQ4 with 4L80E Jake's D-1 transmission
MSD 2 step works with, and wired in conjunction with, Transbrake, which is normally set at anywhere from 3000-4000 depending on boost level choice for that day
Is there a way to have a 2nd LOWER rev limiter, used for my burnout only? Similar to an MSD THREE step?
Since the turbo swap, when doing a burnout, it takes a bit more throttle to get the tires spinning, then it almost free revs, and does so a little higher than I'd prefer. I balance it's RPM the best I can, but would like a different solution, if there is one.
Turbo LQ4 with 4L80E Jake's D-1 transmission
MSD 2 step works with, and wired in conjunction with, Transbrake, which is normally set at anywhere from 3000-4000 depending on boost level choice for that day
Is there a way to have a 2nd LOWER rev limiter, used for my burnout only? Similar to an MSD THREE step?
Since the turbo swap, when doing a burnout, it takes a bit more throttle to get the tires spinning, then it almost free revs, and does so a little higher than I'd prefer. I balance it's RPM the best I can, but would like a different solution, if there is one.
TECH Junkie
Joined: Dec 2012
Posts: 3,618
Likes: 1,328
From: Iowa
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
I wish the guy had reported back, or elaborated a little about how he did it. I'd be scared of flyback current/feedback, using 2 MSD units in sync.
My other option, which is much cheaper...is to simply put the transbrake wire on a toggle switch, but then I think that would hamper the burnout, limiting it to 3000-4000 rpm.
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
Trending Topics
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
With the turbo, it usually acts like it doesn't want to get spinning, then cracks open to redline, damn near, lol
Here's one from a few months ago, only the 2nd pass on the turbo combo, but you can hear/see burnout pretty good.
Here's from this past weekend, with some street tuning, and more seat time...(the rumpity rump cam, loud car is the all-out drag car I raced, but you get the point, I guess, lol)
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo TECH Junkie
Joined: Dec 2012
Posts: 3,618
Likes: 1,328
From: Iowa
You're asking for a sprag failure with your burnout method
If you keep letting the tires "bite" in 2nd it is very hard on the sprag
If you don't have the power to start your burnout in 2nd (recommended) then you don't have much option to start in first,
But when you do get the burnout going, shift 1-2 then make sure to click it into 3rd gear before you roll out and let the tire bite
If you keep letting the tires "bite" in 2nd it is very hard on the sprag
If you don't have the power to start your burnout in 2nd (recommended) then you don't have much option to start in first,
But when you do get the burnout going, shift 1-2 then make sure to click it into 3rd gear before you roll out and let the tire bite
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
You're asking for a sprag failure with your burnout method
If you keep letting the tires "bite" in 2nd it is very hard on the sprag
If you don't have the power to start your burnout in 2nd (recommended) then you don't have much option to start in first,
But when you do get the burnout going, shift 1-2 then make sure to click it into 3rd gear before you roll out and let the tire bite
If you keep letting the tires "bite" in 2nd it is very hard on the sprag
If you don't have the power to start your burnout in 2nd (recommended) then you don't have much option to start in first,
But when you do get the burnout going, shift 1-2 then make sure to click it into 3rd gear before you roll out and let the tire bite
Only 1 time did I "accidentally" shift into 3rd, and it immediately dogged the engine down.
Are you saying start off in 2nd, and leave it in 2nd still? or am I misunderstanding?
Thanks.
TECH Junkie
Joined: Dec 2012
Posts: 3,618
Likes: 1,328
From: Iowa
4l80e and th400 share the same int. sprag and dynamic
There are lots of guys that do it your way...but it is still not the recommended method.
Start in 2nd, shift to 3rd, then rollout and end the burnout. That is the preferred method.
After being in 100+ 80e/400's I can tell you that those guys that end their burnout in 2nd...we can usually tell. The dogs of the sprag usually have noticible wear marks as does the race.
Not saying your burnout procedure is certain death...it's just unnecessary risk and wear
There are lots of guys that do it your way...but it is still not the recommended method.
Start in 2nd, shift to 3rd, then rollout and end the burnout. That is the preferred method.
After being in 100+ 80e/400's I can tell you that those guys that end their burnout in 2nd...we can usually tell. The dogs of the sprag usually have noticible wear marks as does the race.
Not saying your burnout procedure is certain death...it's just unnecessary risk and wear
Thread Starter
Joined: Nov 2005
Posts: 2,874
Likes: 314
From: Baltimore County, MD.
4l80e and th400 share the same int. sprag and dynamic
There are lots of guys that do it your way...but it is still not the recommended method.
Start in 2nd, shift to 3rd, then rollout and end the burnout. That is the preferred method.
After being in 100+ 80e/400's I can tell you that those guys that end their burnout in 2nd...we can usually tell. The dogs of the sprag usually have noticible wear marks as does the race.
Not saying your burnout procedure is certain death...it's just unnecessary risk and wear
There are lots of guys that do it your way...but it is still not the recommended method.
Start in 2nd, shift to 3rd, then rollout and end the burnout. That is the preferred method.
After being in 100+ 80e/400's I can tell you that those guys that end their burnout in 2nd...we can usually tell. The dogs of the sprag usually have noticible wear marks as does the race.
Not saying your burnout procedure is certain death...it's just unnecessary risk and wear